<template>
    <div class="sidebar">
        <el-menu class="sidebar-el-menu" :default-active="onRoutes" :collapse="collapse" background-color="#20222A"
                 text-color="rgba(255,255,255,.7)" active-text-color="#fff" unique-opened router>
            <template v-for="item in menus">
                <template v-if="item.children">
                    <el-submenu :index="item.link" :key="item.id">
                        <template slot="title">
                            <i :class="item.icon"></i>
                            <span slot="title">{{ item.name }}</span>
                        </template>
                        <template v-for="subItem in item.children">
                            <el-submenu v-if="subItem.children" :index="subItem.link" :key="subItem.id">
                                <template slot="title">{{ subItem.name }}</template>
                                <el-menu-item v-for="(threeItem,i) in subItem.children" :key="i" :index="threeItem.link">
                                    {{ threeItem.name }}
                                </el-menu-item>
                            </el-submenu>
                            <el-menu-item v-else :index="subItem.link" :key="subItem.id">{{ subItem.name }}
                            </el-menu-item>
                        </template>
                    </el-submenu>
                </template>
                <template v-else>
                    <el-menu-item :index="item.link" :key="item.id">
                        <i :class="item.icon"></i>
                        <span slot="title">{{ item.name }}</span>
                    </el-menu-item>
                </template>
            </template>
        </el-menu>
    </div>
</template>

<script>
	import bus from "../common/bus";
	export default {
		data() {
			return {
				collapse: false,
                menus:[],

			};
		},
		methods: {

            getMenus(){
                let params = {
                    isAll:1
                }
                this.$get(this.$api.adminMenus,params).then(res => {
                    if (res.code == 200) {
                        this.menus = res.data
                    } else {
                        this.$message.error('未获取到数据');
                    }
                });
            },
		},

		computed: {
			onRoutes() {
				return this.$route.path.replace("/", "");
			}
		},
		created() {
			// 通过 Event Bus 进行组件间通信，来折叠侧边栏
			bus.$on("collapse", msg => {
				this.collapse = msg;
			});
            this.getMenus();
		}
	};
</script>

<style scoped>
	.sidebar {
		display: block;
		position: absolute;
		left: 0;
		top: 60px;
		bottom: 0;
		overflow-y: scroll;
	}

	.sidebar::-webkit-scrollbar {
		width: 0;
	}

	.sidebar-el-menu:not(.el-menu--collapse) {
		width: 180px;
	}

	.sidebar>ul {
		height: 100%;
	}
</style>
